# Bleaching is indicated in which of the following clinical situations?
A. Dentin discolorations
B. Teeth with discolored composites
C. Tooth discoloration due to caries
D. Teeth with superficial discolorations

# A 20 year old female patient comes to the clinic with discoloration of the upper right central incisor. This tooth was intact and otherwise asymptomatic.The common sequel following bleaching non vital teeth is:
A. Ankylosis
B. Periodontal pathology
C. External cervical resorption
D. Reinfection

# A 20 year old female patient comes to the clinic with discoloration of the upper right central incisor. This tooth was intact and otherwise asymptomatic.The treatment most often employed for managing discoloration in a non vital tooth is:
A. Microabrasion
B. Walking bleach
C. Over the counter bleaching
D. Veneer

# A 20 year old female patient comes to the clinic with discoloration of the upper right central incisor. This tooth was intact and otherwise asymptomatic. The most likely cause for the discoloration in this patient would be:
A. pulp necrosis
B. dental resorption
C. internal resorption
D. microleakage

# Following intracoronal bleaching immediate composition restoration was required, what has to be done?
A. Treat with catalase
B. Wait for 7 days is mandatory
C. Treat with H2O2 for 3 minutes
D. Not possible

# A 12 year old child comes to your clinic with a history of long term use of tetracycline. The anterior teeth are mild yellowish brown. What method would you use to remove the stain?
A. Hydrochloric acid pumice microabrasions
B. At home bleaching method
C. Superoxol with or without heat
D. Composite resin veneers

# When undertaking bleaching of vital teeth, all of the following are done except:
A. Prophylaxis
B. Use of eye protective glasses
C. Use of local anesthesia
D. Polishing after treatment

# In the walking bleach technique:
A. It uses a heat treatment
B. It requires the patient to report in 24 hours
C. Can be done with 35 percent hydrogen peroxide
D. It uses a mixture of sodium perborate and hydrogen peroxide

# Home bleach is also called as:
A. Walking bleach
B. Thermocatalytic bleach
C. Power bleach
D. All of the above